Importance

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Abstract

An image signal processing method for a picture output device converts three color separation signals of an original into digital signals, color corrects the digital signals and records a color image using the color corrected signals. According to one embodiment, the multiplied result of three color separation signals and corresponding predetermined coefficients are stored in a memory as a data table. The multiplied results are sequentially read out from the memory and added together. Color corrected signals are outputted in accordance with the added result for recording of the color images. Acording to another embodiment, the color distribution of the three color separation signals is discriminated to obtain a specific color distribution signal. The specific color distribution signal is then inputted as an address signal into a color conversion table via an address editing circuit. According to yet another embodiment, the number of output colors of the color image is set in advance. The number of quantization levels for digitizing the three color separation signals is then set in accordance with the set number of output colors.

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First Claim